The authors of Discorunner are developing a successor.
Here is a link showing them demonstrating their prototype system to KFest 2016.
"Melody Ayres-Griffiths and her Australian wife April will be demonstrating the successor to their Apple II BASIC interpreter DiscoRunner, the Go-ported quasi-emulator PERCOL-8, a compatible, cloud-connected, 3D-enhanced update to the Apple II environment intended to introduce today's kids to 1980s computing "with the rough edges filed down and sparklers applied." PERCOL-8 provides numerous enhancements while maintaining compatibility with both Integer and Applesoft BASIC, 6502 machine code and Apple LOGO. These include cloud-based file services, an integrated BBS for messaging and chat, Internet multi-player gaming support, an OpenGL-based VDU, enhanced sound architecture, improved editing tools and a "piggyback" function syntax."
Here is the link to the video:
https://archive.org/details/Kansasfest2016MelodyAyresGriffithsPERCOL8
